+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   15783 Briancox (1993 PZ2) Classification: Outer Main-belt Asteroid          SPK-ID: 2015783 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 31 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2575875938902012 4.7807e-08   a 3.958109892453288 3.1857e-08 au q 2.938549888903242 1.8459e-07 au i 4.840885094342842 4.5198e-06 deg node 220.3752916237337 5.5137e-05 deg peri 119.0580155419757 5.5619e-05 deg M 164.2648448694981 1.0634e-05 deg tp 2457888.081554531017 (2017-May-14.58155453) 7.5526e-05 TDB period 2876.273622296927 7.87 3.4725e-05 9.507e-08 d yr n .1251619446805315 1.5111e-09 deg/d Q 4.977669896003333 4.0063e-08 au   Orbit Determination Parameters    # obs. used (total)      1613      data-arc span      15511 days (42.47 yr)      first obs. used      1978-09-26      last obs. used      2021-03-15      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .48937      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 01:08:57   Additional Information  Earth MOID = 1.93234 au   Jupiter MOID = .654551 au   T_jup = 2.994  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 12.3   n/a MPO502290   rotation period rot_per 56.56 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so. Published Reference List: [Warner, B.D.; Stephens, R.D. (2018) Minor Planet Bull. 45, 35-39.] 15783 Briancox           Discovered 1993 Aug. 14 by E. W. Elst at Caussols. Brian Edward Cox (b. 1968), an English particle physicist, is advanced fellow of physics and astronomy at the University of Manchester. He is also a member of the High Energy Physics group at the same university, working with the Large Hadron Collider. To the public, he is well known as the presenter of BBC science programs. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: MPC batch dated 2015-01-05 Last Updated: 2015-01-07 [ show close-approach data ] Alternate Designations  1993 PZ2 = 1978 SQ6 = 1986 TV17 = 1991 GP13  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-16 12:47 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin